TOTAL VOLUME:

$114.4b

24H VOL:

$91,248,924

24H TRANSACTIONS:

1,362,287,844

OPEN INTEREST:

$1,163,520,955

334,440

Markets across

33,346

events

MATCHED EVENTS:

4,559

PLATFORM COVERAGE:

5

Polymarket:

42%

VS.

Kalshi:

58%

BETA
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Science and Technology
Will the U.S. confirm that aliens exist?
kalshi

Will the U.S. confirm that aliens exist?

Dec 5, 2025, 1:00 AM EST - Jan 1, 2027, 10:00 AM EST
Total volume:
$35,775,719
Volume 24h:
$22,692
23%
Liquidity:
N/AN/A
Open interest:
$15,800,882
0.03%

Before Jan 20, 2029

 - Kalshi

Before Jan 20, 2029 - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolves Jan 1, 2027

Will the U.S. confirm that aliens exist in 2029?

23%chance
Amount

$

Trade on
kalshi

Trade on Kalshi

Join Kalshi and score $25 for your first trade.At 24¢ buys you 417 shares | Odds: 23% Total Payout: $417 | Net Profit: $317 Multiplier: 4.17x | ROI: 317% High Projected APY: 5,943% 127 days to resolution
You will be redirected to the platform to complete this trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Before Jan 20, 2029

Trade
23%
1%
Yes 24¢No 77¢
N/A
$546,657
0.27%
4%
$216,874
4mo 1w
active
kalshi

Before 2028

18%
Yes 18¢No 83¢
N/A
$625,662
0.64%
5%
$330,416
4mo 1w
active
kalshi

Before 2027

5%
Yes 5.6¢No 94.8¢
0.4¢
N/A
$27,170,538
0.06%
0.53%
$9,528,495
4mo 1w
active
kalshi

Before December

4%
Yes No 97¢
N/A
$151,736
0.34%
6%
$85,509
4mo 1w
active
kalshi

Before November

3%
Yes No 97¢
N/A
$291,532
0.01%
34%
$248,824
4mo 1w
active
kalshi

Before September

1%
Yes No 100¢
N/A
$2,667,768
0%
0.36%
$1,700,941
4mo 1w
active
kalshi

Before October

1%
Yes No 99¢
N/A
$252,597
0.01%
1%
$236,008
4mo 1w
active
kalshi

Before July

0%
Yes No 100¢
100¢
N/A
$3,153,287
N/A
N/A
$2,571,080
4mo 1w
No
kalshi

Before August

0%
Yes No 100¢
100¢
N/A
$915,942
N/A
N/A
$882,735
4mo 1w
No
Total markets: 9

Intro

This market on Kalshi tracks whether a U.S. President, Cabinet member, Joint Chiefs of Staff member, or federal agency will make a definitive public statement confirming the existence of extraterrestrial life or technology. The leading outcome—confirmation occurring in 2029—stands at 24.0%, while confirmation in 2028 is at 16.0%. Resolution is determined by official statements from the specified U.S. government sources, with the betting window closing on January 1, 2027. Watch for any major government announcements or congressional hearings on extraterrestrial matters before the end of 2026, as these could signal imminent official confirmation.

Kalshi

Resolution occurs if the President, any Cabinet member, any member of the Joint Chiefs of Staff, or any U.S. federal agency definitively states that extraterrestrial life or technology exists before the specified deadline. For purposes of this market, the Cabinet includes the heads of the 15 government agencies in the Cabinet as of issuance, plus the EPA Administrator, President's Chief of Staff, Director of National Intelligence, Director of OMB, Director of CIA, U.S. Trade Representative, Ambassador to the UN, Chair of the Council of Economic Advisers, Administrator of the SBA, and Director of OSTP. Each outcome represents a different deadline, with earlier confirmations satisfying later deadline conditions.

Frequently asked questions

The dashboard tracks real-time odds and trading activity for the Will the U.S. confirm that aliens exist? event on Kalshi. It displays the current implied probability that the U.S. will officially confirm alien existence before Jan 1, 2027. You can monitor live price movements, historical odds trends, and 24-hour trading volume of $13,679 to understand market sentiment. The dashboard aggregates key metrics from Kalshi to help traders and observers gauge how the market is pricing this high-stakes science and technology question.

Prediction market odds on Kalshi reflect real-money trader conviction and differ from traditional analyst forecasts. While academic researchers and government observers may offer qualitative assessments of disclosure likelihood, prediction markets incorporate continuous trading and financial incentives. Analysts typically focus on policy timelines and scientific discovery rates, whereas markets price in broader geopolitical, technological, and institutional factors. Comparing the two reveals whether traders are more or less optimistic than expert consensus, offering a complementary lens on the probability of U.S. alien confirmation by Jan 1, 2027.

On Kalshi, the Will the U.S. confirm that aliens exist? contract is priced at 23.0% implied probability. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price reflects the collective assessment of traders betting on whether official U.S. confirmation will occur before Jan 1, 2027. Kalshi's order book continuously updates as traders buy and sell shares, with each trade adjusting the contract price. The current pricing incorporates recent news, scientific developments, and shifting market sentiment about government disclosure timelines and evidence standards for alien existence.

The market resolves on Jan 1, 2027. Resolution hinges on whether the U.S. government has issued an official, public confirmation of alien existence by that deadline. The determination considers statements from authorized federal agencies, legislative findings, or executive declarations. Ambiguous or unofficial claims do not trigger resolution. The outcome is binary: either the U.S. has confirmed aliens exist, or it has not. Traders should monitor government announcements, congressional hearings, and official policy statements as the resolution date approaches.

Key catalysts include congressional hearings on unidentified aerial phenomena, declassified government reports, and statements from defense or intelligence officials. Scientific discoveries of extraterrestrial biosignatures or artifacts could accelerate market movement. International space missions or unexpected astronomical observations may shift trader expectations. Media coverage of credible sightings or leaked government documents can trigger sharp price swings. Political shifts affecting transparency priorities and regulatory changes around disclosure also influence odds. Any formal government announcement or policy shift regarding alien confirmation would likely cause significant market repricing before Jan 1, 2027.